Numéro
J. Phys. Colloques
Volume 43, Numéro C4, Décembre 1982
ICOMAT-82
International Conference on Martensitic Transformations
Page(s) C4-615 - C4-620
DOI https://doi.org/10.1051/jphyscol:1982497
ICOMAT-82
International Conference on Martensitic Transformations

J. Phys. Colloques 43 (1982) C4-615-C4-620

DOI: 10.1051/jphyscol:1982497

THE β↔2H MARTENSITIC TRANSFORMATION IN A Cu-Zn-Al ALLOY AS STUDIED BY SIMULTANEOUS ENTHALPY AND ACOUSTIC EMISSION MEASUREMENTS

A. Planes1, J.L. Macqueron2, M. Morin2, G. Guénin2 et L. Delaey3

1  Facultat de Física, Departament de Termologia, U.B., Diagonal 645, Barcelona 28, Spain
2  Institut National des Sciences Appliquées de Lyon, Bâtiment 502, 69621 Villeurbanne, France
3  Departement Metaalkunde, Katholieke Universiteit Leuven, de Croylaan 2, B-3030 Heverlee, Belgium


Abstract
Simultaneous enthalpy and acoustic emission measurements were used to study the β→2H martensitic transformation in a Cu-Zn-Al alloy. The results are compared with those obtained for the β→18R transformation in a Cu-Zn-Al alloy with different composition. The prominent results can be sumarised as follows : the transformation has a jerky growth character and signals obtained are not reproducible from one thermal cycle to the other. The thermoelastic character of this transformation is questionable.